Virtuozzo 7 : readykernel-patch (VZA-2019-078)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(133460);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/28");

  script_cve_id("CVE-2019-11810");

  script_name(english:"Virtuozzo 7 : readykernel-patch (VZA-2019-078)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Virtuozzo host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the vzkernel package and the
readykernel-patch installed, the Virtuozzo installation on the remote
host is affected by the following vulnerability :

  - [3.10.0-693.21.1.vz7.46.7 to 3.10.0-957.12.2.vz7.86.2]
    megaraid_sas: potential kernel crash due to a NULL
    pointer dereference in megasas_free_cmds(). A flaw was
    found in 'megaraid_sas' kernel module. NULL pointer
    dereference can occur in megasas_free_cmds() function
    due incorrect error handling in megasas_alloc_cmds().
    An attacker could exploit this to trigger a kernel
    crash.

Note that Tenable Network Security has extracted the preceding
description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://virtuozzosupport.force.com/s/article/VZA-2019-078");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-46.7-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?60a6f64b");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-48.2-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ee577bfd");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-63.3-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?491a7d67");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-64.7-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c13a5db5");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-73.24-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?de51d2b2");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-73.29-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?01c890c8");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-85.17-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8eac4036");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-86.2-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f27b2517");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-96.21-88.1-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fbf98939");
  script_set_attribute(attribute:"solution", value:
"Update the readykernel patch.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11810");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:readykernel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:virtuozzo:virtuozzo:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Virtuozzo Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Virtuozzo/release", "Host/Virtuozzo/rpm-list", "Host/readykernel-info");

  exit(0);
}

include("global_settings.inc");
include("readykernel.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/Virtuozzo/release");
if (isnull(release) || "Virtuozzo" >!< release) audit(AUDIT_OS_NOT, "Virtuozzo");
os_ver = pregmatch(pattern: "Virtuozzo Linux release ([0-9]+\.[0-9])(\D|$)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Virtuozzo 7.x", "Virtuozzo " + os_ver);

if (!get_kb_item("Host/Virtuozzo/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Virtuozzo", cpu);

rk_info = get_kb_item("Host/readykernel-info");
if (empty_or_null(rk_info)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");

checks = make_list2(
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.46.7",
    "patch","readykernel-patch-46.7-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.48.2",
    "patch","readykernel-patch-48.2-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.11.6.vz7.64.7",
    "patch","readykernel-patch-63.3-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.20.2.vz7.73.24",
    "patch","readykernel-patch-64.7-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.20.2.vz7.73.29",
    "patch","readykernel-patch-73.24-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.9.1.vz7.63.3",
    "patch","readykernel-patch-73.29-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.10.1.vz7.85.17",
    "patch","readykernel-patch-85.17-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.12.2.vz7.86.2",
    "patch","readykernel-patch-86.2-88.1-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.12.2.vz7.96.21",
    "patch","readykernel-patch-96.21-88.1-1.vl7"
  )
);
readykernel_execute_checks(checks:checks, severity:SECURITY_HOLE, release:"Virtuozzo-7");